How to make a USB fan from improvised means? We make a USB fan at home with our own hands How to make a paper fan without a motor

Low noise fan you can make for room air conditioners, for window and table fans, for cooling or heating various equipment.

in front of you general form low-noise TsAGI fan (see Fig. 1). It consists of an electric motor, housing and impeller (impeller). The fan can be made without a case. But then it will not give such a powerful air flow. The fan diameter can be up to 400 mm.

If you have an electric motor and you know its maximum speed, then according to the graph (Fig. 2), it is easy for you to determine which maximum diameter you can make a fan.

So, you have decided to make a fan. Keep in mind that the noise of the entire installation is made up of the noise of the motor and the impeller. So if you want a quiet fan, then choose a quiet electric motor.

The fan impeller is made of metal, duralumin or steel sheet. The thickness of the sheet is selected depending on the diameter of the impeller in the range of 0.5-2 mm. The larger the diameter of the impeller, the thicker the sheet should be taken.

First, unfold the impeller. The dimensions of this sweep are shown in Figure 3. Here, the numbers indicate not millimeters, but fractions of the radius of the impeller blade. To obtain dimensions in millimeters, multiply the indicated figures by the selected radius of the fan impeller. Then give the impeller blades desired profile- knock them out on a blank. Make a blank out of hard rock wood according to the dimensions shown in Figure 4. Here, the dimensions are also given in fractions of the radius of the impeller.

How to get such a blank? It is processed in three curved patterns. These templates are made from flat templates (Figure 5). You will find the bending radii of bent templates and the dimensions of flat templates in the table. Bent templates check the correctness of the manufacture of the blank in three sections I-I, II-II, III-III. Align the ends of the template arc with the corresponding vertical marks on the sides of the blank. Make sure that the axial risks on the templates and the blank are located in the same plane. Templates are easiest to make from tin. But any metal or plastic sheet will do, only the working edge of the templates must be made no thicker than 0.5 mm.

The working surface of the blank should be smooth and smooth. To do this, it must be thoroughly cycled and cleaned with sandpaper. Only after that it is possible to knock out the blades of the fan impeller on it. To prevent the impeller blank from moving during the drift, nail it in the center to the blank. And to increase the rigidity of the blades, after knocking them out at the root of the blade along the axis, make small indentations - ridges.

The sleeve for landing the impeller on the axis of the electric motor is machined on lathe, or made manually such as shown in Figure 6. The impeller with the sleeve are connected with rivets or screws.

When the fan impeller is assembled, be sure to balance it statically.
We have already said above that the fan can be made with or without a case. Figure 1 shows one of options hull structures. Other designs are also possible.

Nowadays it is impossible to imagine a hot season without a fan. At this time, it is important big models, and small. But, unfortunately, the latter are many times more expensive, and you will not find it in every store. suitable model. Do not rush to fork out - there is a way out!

In this article, we will give you some ideas on how to make a DIY fan at home. This process is quite exciting, so it will be possible to involve teenage children in it.

Cooler fan

This is the easiest way to make a home fan. For manufacturing, we need a cooler from an old computer. This part itself is already operational, we just have to correctly connect it to the wire.


If the future fan will be in close proximity to the computer, then a standard USB cable will do as a wire. We cut off the unnecessary edge of the cord with a small connector and strip the wires. Similarly, we clean the wires at the cooler.

Sometimes there are more than two wires in the cooler and USB cable, remember, we need black and red color of two wires in one and in the other element. We don't need the rest.

After stripping, we connect the red wire to red, black to black, the connections must be well insulated. After isolation, the fan is already quite working, it remains to come up with it original stand to your taste and glue it to the cooler. All! The device is ready!

The speed of the cooler device is quite high, so you can safely use it as a fan for drying hands.

Disc construction

This device is more complex than the one made from a cooler. For manufacturing, we need a motor with a protruding iron rod. These motors can be taken from old toy, VCR or player ( last option the most suitable, because it is the player that has a standard disc attachment). We connect the motor with the wires in the above way.

We cut the disk into eight future blades; when cutting, we do not reach the end of the inner edge. Slightly heat the disc to soften and bend the blades, like a conventional fan. Instead of a disc, you can use a plastic bottle.


We insert a cork from a bottle into the center of the blades, it is the cork that will be the connector of the motor and the blades. If the insert is too big, then carefully cut it with a knife.

Having connected all the details, we supplement finished structure stable stand. To do this, you can use a sleeve from a roll toilet paper and a second whole disk, which will serve as a common support.

To fasten the parts to each other will be better use high-quality glue, so that in the future the structure will last a long time and not crumble.

Fan made of two plastic bottles

This design is more complex, requires a more serious approach in manufacturing. Result - great way make a kind of desktop or floor fan with your own hands.

For the manufacture we need:

  • two bottles of different sizes - 0.5 and 1.5 liters;
  • small motor type 12 V DC;
  • 7 thick tubes for drinks;
  • power supply and connector to it;
  • CD disk;
  • hot glue and superglue;
  • switch;
  • plastic ties.

Accessories:

  • marker;
  • scissors or knife;
  • insulating tape;
  • soldering iron;
  • wire cutters.

From a bottle with a smaller volume, we cut the blades, as indicated above. We make a hole in the center of the cork with a hot awl or nail. We put the cover on the engine and fix everything with hot glue.

We build a stand. We firmly glue the drinking tubes together with superglue - this is our future rack. Cut out from the second bottle upper part and insert the glued tubes to the middle of its length, not forgetting to fix the connection with superglue.

We install the engine with blades on a rack of tubes, additionally again smearing everything with hot glue. We hide the wires in tubes, so they are inside the rack. We fasten the design of the engine and rack plastic ties, gluing them along the tubes with hot glue and cutting off the remaining excess edges.

We cut holes in the bottom of the rack for the power supply connector and switch. We connect them, not forgetting about good insulation. We fix everything to the plastic with hot glue.

For weighting and stability of the base, we construct a bottom from a disk. To do this, simply glue the disc with the edges of the plastic bottle with hot glue.

We connect the power supply to the connector, and now - the fan is ready to work!

What to do if the household fan does not work?

So, we already know how to make a fan on our own. But in your household there is probably a faulty factory-made fan. The design of such products is simple (you can use the instructions), so for those who are especially curious, the final topic of the article will be repair floor fan at home.


Causes of the malfunction

We list the main problems in which the device does not work and possible ways their elimination.

The unit does not turn on. If the light is on, but the device does not turn on, then the cause is probably a broken button. If the light does not light up, then the reason is most likely in the cord or plug.

Weak rotation of the blades - a signal of insufficient lubrication bearings inside the engine.

The fan stopped rotating left and right. It's all about the crank, its mounting screws can loosen or unscrew.

Buzzing and no rotation. There are three possible causes of failure - lack of lubrication on the bearings, a broken capacitor or an electric motor.

DIY fan photo

The USB cooler is the most common fan, however, of a smaller size, which is connected to the corresponding computer connector. Can be purchased already finished device or make it yourself, which is quite simple, most importantly, follow the instructions clearly.

How to make a fan

It is worth noting that this kind of technique is not considered particularly powerful, however, practice and numerous positive reviews convince you otherwise. Like any other device, such a fan has certain pros and cons.

The main advantages include the fact that:

  • It is compact;
  • Multifunctional:
  • It's easy to use;
  • You can make your own.

Among the main types of such fans can be found desktop and compact models. Desktop options they do their main task well and can cool computer parts with high quality even if it is used for a long time. USB mini fans are distinguished by their compact size. Their design can be absolutely anything, and in terms of power they are somewhat inferior to desktop models. Compact options are designed only for light cooling of equipment, and desktop models are designed for high-quality cooling of the room and the space around the computer.


There are very few drawbacks to this type of technology, however, if a person does not even have the slightest idea about the operation of technology and electronics, then he does not even need to try to make a fan at home.

In addition, it is worth considering that mini-models cannot control the direction of the air flow, and in order to solve this problem, you will have to make quite a lot of effort. Working on a computer summer time, many people suffer from extreme heat even if there is air conditioning, since it is not always convenient to turn it on.

To solve this problem, you can make a small fan out of:

  • cooler;
  • Motor;
  • Small engine.

A homemade fan can also be connected to the car using a USB cable. Such homemade products can be very useful and it is quite possible to make them from unnecessary parts.

Initially, you need to take the old cooler and prepare it. It has two wires: black and red. About 10 mm of insulation must be stripped from each wire.

Important! How larger size cooler, the greater the wind flow will result.

You also need to prepare the USB wire by stripping the insulation on it. The result should be 2 red and black wires. Then connect these wires to each other, taking into account color coding. Everything is well insulated. It is worth remembering that the more isolation, the better. Then attach to the received device additional elements, which will act as a means for more cooling or just decor. For convenience, you can install the finished cooler in a shoe box to make it more stable, and connect the wire to the computer. You can also make a fan using a motor from a toy or an engine as a base. This will achieve better cooling of the room.

There are many options self-manufacturing a fan that will work no worse than a purchased product.

Homemade fan can be made from:

  • Disk;
  • thick paper;
  • Plastic bottle.

Very easy to do small fan from ordinary computer disks. It can be used to cool a computer or laptop, as well as a user who works with equipment for a long time.

To do this, you first need to prepare materials such as:

  • CDs;
  • Motor;
  • Wine cork;
  • USB cable with plug;
  • Cardboard.

The motor can be taken from an old toy, for example, a car. The assembly process is quite simple. To do this, take one disk and use a marker to divide it into 8 identical parts. Then draw along these lines with a soldering iron from the transparent part to the edge and cut with a knife heated on the stove.

Over the flame of a burning candle, slightly heat the surface of the disk so that the blades can be slightly deployed. Insert into hole wine cork, fix and process the edges with hot glue.

Connect the USB cable to the motor. From cardboard, make a tube to which to glue the motor, as well as another whole disk that will play the role of a stand. When everything is ready, attach the propeller to the motor shaft and fan shaft. Secure it with hot glue. Despite the fact that the process of its manufacture takes a lot of time, however, the result will definitely please. The blades of the disk will rotate, as a result of which good cooling can be obtained. If necessary, you can install a mini flash drive and connect the clock. You can also make a fan on a battery or power it by connecting a generator. It all depends on your own preferences and knowledge in technology and electronics. Such crafts are quite simple to translate into reality, the most important thing is to do everything step by step and clearly follow the instructions.

A simple DIY fan

You can make your own quite original and stylish paper ceiling fan. This bladeless model is somewhat similar in appearance to a snail, which attracts buyers. However, it works very well and you can easily do it yourself. The principle of operation of such a fan is quite simple, since a small turbine is located at the base of the device, which helps to create air flows passing through the side holes.

To create such a device, you need:

  • Cooler from the computer;
  • Old computer case with power supply and USB connector;
  • Switch;
  • Thick paper;
  • Hot glue gun.

Initially, you need to make the base of the device. For this, thick cardboard or paper is used. The parameters must be taken into account based on the size of the cooler. Embed a switch and a power connector in the housing.


Then cut out two circles from paper, which will act as the main part of the fan. Attach them to the body of the product. Assemble the device, fastening all parts with hot glue so that the cooler is located in the central part of the case. Remove the wires in the corner of the structure. Then connect the switch and make a test connection to the network. If everything works, you need to attach the parts cut out of paper to the case to make the device safe. Thus, the impeller will be located inside the device itself, which is completely safe during its operation. In addition, an extractor hood can be made in almost the same way, however, it is worth using a powerful working compressor.

Methods: how to connect the cooler to USB

You can simply connect the cooler to the USB and for this you absolutely do not need to have specific knowledge and skills.

This will require:

  • Computer cooler;
  • Wire with USB;
  • Insulating tape.

Initially, you need to carefully strip the wires on the cooler and the USB cable by about 1 cm each. Connect them together by color and if there is a soldering iron, then it is best to solder. Then you need to wind the electrical tape so as to completely isolate the wires, otherwise the USB port may burn out when the contacts are closed. After that, check the performance of the cooler. In just a few minutes, you can get a very good coolant.

How to make a fan with your own hands (video)

Making a fan yourself is not at all difficult. The most important thing is to choose the right materials and components, as well as step by step to perform all the steps.

Working in the summer at the computer, or just on vacation, sometimes you want a slight breeze, a “local” coolness. The airflow of an office air conditioner doesn't create the sweet comfort of a gentle, directed blow that a mini fan provides. It is very easy to make such a device with your own hands.

How to make a "personal breeze"

The most famous invention in this field since ancient times is folding fans. They were made from colored paper and ostrich feathers, from painted silk and carved bamboo sticks. Such a device has only one drawback: to obtain such a desired coolness, you need to hold it in your hand, which is not always convenient. It is ridiculous to imagine a manager or an economist working at a computer and fanning himself with a fan.

Therefore, let's return to our topic and figure out how to provide yourself with a pleasant breath in the heat. To make a mini-fan with your own hands, you need to solve the following few tasks:

  1. What will be the rotating propeller, from what material.
  2. Where can I get a motor.
  3. From what power source will the device work.
  4. Is it possible to completely do without an engine.

How to make a mini fan?

Let's start with the simplest: making blades. If you take a square from an ordinary sheet of paper, cut it diagonally, leaving about a centimeter intact in the center, you get a blank for a turntable. Then 4 sharp corners are bent to the middle and alternately strung on a nail, having previously stuck it into the center of the workpiece. That's all! Too bad it's just a baby spinner.

For functional and useful design take 2 CDs or DVDs. From one you get the blades, from the second - a stand for the device.

The circle that has served its purpose is cut into several equal parts(from edge to center). To make the process easier, you can hold the plastic for a few seconds over the fire. Each of the resulting sectors of the softened workpiece is slightly rotated around its axis to form a propeller.

What other components are needed in order to assemble a convenient mini fan? Here is the list:

  • Cork from a wine bottle.
  • Cardboard or plastic straw for attaching the engine to the stand.
  • Small motor.
  • Two wires.
  • USB cable or batteries.
  • Good glue, scissors, a strong large nail or awl.

Where to get a micromotor

It happens that in the home bins are stored appliances that no one has been using for a long time. It can be hair dryers or mixers, blenders and children's cars. Even a motor from an old tape recorder, player or some other mechanism may come in handy. We disassemble the unnecessary device and remove the engine, after disconnecting all the wires.

Since we make a mini fan, the motor is from the old washing machine, refrigerator, vacuum cleaner or other large unit will not work due to its size and noise.

Continuation of the assembly of the device

A hole is made in the cork and placed on the axis of the selected engine. To fix the shaft, it is pre-coated with glue. Then, a propeller cut from the disk is fixed with glue on the part of the axis sticking out of the plug hole.

Next smeared with glue paper tube in diameter and put it on the plane of the second disk. Then the motor is installed on top and its contacts are connected to the leads from the USB cable. If, when plugged into the computer port, the propeller spins in reverse side, you need to disconnect the contacts, swap them and solder them again.

By connecting a battery to such a device, you can use it anywhere in the room, in the car, near the pool.

Wind turbine without engine

How to make a mini fan at home and do without a motor? A very popular option is to create a device using small neodymium magnets.

They take the cooler from the computer and separate 4 transformer coils from its case. Instead of copper windings you need to install and fix the same number of pieces of the magnet. Usually they buy neodymium in the form of semi-arcs or remove them from an unusable hard drive. The magnets are placed exactly in the places where the transformer windings were removed, that is, along the perimeter of the cooler frame.

As soon as the last piece is fixed, the mini-fan will begin its rotation. Using permanent magnet technology, it is possible to assemble almost perpetual motion machine. To stop it, one of the pieces of neodymium that replaced the coil is removed from the circuit.

The field of the magnets must be equal in strength to the field of the disconnected coils, otherwise the propeller will not be able to rotate in a constant stable mode. The poles are arranged diagonally, alternating plus and minus.

What to do if none of the above methods are suitable, if there is not enough time or details to homemade fan? In this case, you will have to use the usual factory product.

Summer has come, which means heat, heat and an eternal lack of coolness. But this problem is fixable, and pretty easy. You only need a few details and some free time to make your life easier with your own hands, fill it with light coolness, which you will certainly get by making USB fan Houses. Of course, you can go and buy a fan in the store, but how nice it will be to sit near the same computer, and a light breeze will blow on you from the USB fan you created. And a thing created by one's own hands always pleases not only the eye, but also develops selfishness.

We offer you to watch a homemade video - usb fan:

Tools for usb fan:
- Regular CD (not necessarily new);
- A tube of silicone glue is empty;
- Wooden block;
- Mini disk;
- USB cable;
- Motor;
- Holder;
- Adapter;
- Silicone glue gun.


Three holes must be made in the tube, one in the lid, and two on the sides. Holes are easy to make using a regular nail, which must first be heated.

AT wooden bar it is also necessary to make a slot or recess. This can be done easily with sandpaper.

The mini disk easily turns into a propeller. To do this, it must be drawn into uniform blades, then heated with a clerical knife and cut along pre-drawn lines. And after that, we heat the base of each blade with a lighter and with the help of our hands we bend each blade a little to make a propeller.

We take the motor, holder and adapter from a non-working CD drive.

Now let's start assembling the USB fan.

Heat up the glue gun. Lubricate the holder along the axis silicone adhesive from a glue gun. The propeller must be firmly planted on this glue. Press on all sides. Then, on the other side of the holder, we drip a drop of glue and glue the adapter. We are waiting for the glue to dry well. This usually only takes a couple of minutes.


Now we take a tube of silicone glue, remove the lid and grease the inside with silicone glue. And inside we insert the motor so that the part that we will connect sticks out of the hole that we originally made.


Then we put the USB cable into the side hole of the glue tube and connect the ends of the wires to the motor.

It is necessary to pour silicone glue into the recess in the wooden bar, and put the wire from the USB cable tightly there, and glue the tube with the motor inside to the base of the bar. And on the other side of the bar, glue the CD on silicone glue.

Now the propeller must be mounted on the side of the adapter glued to it on the sharp edge of the motor, which sticks out of the hole in the glue tube.

And finally, our USB fan can be plugged in and get that long-awaited coolness.

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